I strongly recommend to you guys to stay at her place if you visit Bangkok. The location is insanely strategic, just opposite the platinum fashion mall which is one of the biggest wholesale market in the Bangkok. Also, this place is literally located in Pratunam market, so you can go down to do shopping as well.
Pratunam market is cheaper than the platinum mall, you can find any clothes here. Plus, this flat also next to BTS station.
The flat itself is really clean, she provided toilet paper and towel everyday. She also offered us (I stayed with 2 other friends) to clean the flat everyday. Besides, she was quickly response, she would definitely answer your question in a minute.